Remove foreign objects from the stock. Make sure that any stock you process with the jointer is clean and free of any dirt, nails, staples, tiny rocks or any other foreign objects that may damage the jointer blades.

Only process natural wood fiber through your jointer. Never joint MDF, particle board, plywood, laminates or other syntheti- cally made materials.

Make sure all stock is sufficiently dried before jointing. Wood with a moisture con- tent over 20% will cause unnecessary wear on the knives and will produce undesirable results.

Make sure the stock meets the minimum dimension requirement (Figure 28 and 29) before edge jointing or surface planing.

10" Min.

1" Min.

12" Min.

Figure 28. Minimum dimensions

for edge jointing.

10" Min.

12" Min.

1" Min.

Figure 29. Minimum dimensions

for surface planing.

Squaring Stock

Squaring stock involves four steps that should be performed in the order below. The following pages will go into more detail.

End Grain

1.Surface Plane On The Jointer—The concave face of the workpiece is surface planed flat with the jointer.

End Grain

Previously

Surface

Planed Face

2.Surface Plane On A Thickness Planer—The opposite face of the workpiece is surface planed flat with a thickness planer.

Face Grain

3.Edge Joint On The Jointer—The concave edge (viewed from end-to-end) of the workpiece is edge jointed flat with the jointer.

 

End Grain

 

Previously

 

Jointed Edge

 

45

15

30

4.Rip Cut On A Table Saw—Place the jointed edge of the workpiece against a table saw fence and rip the opposite edge off.

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Ultimate Series Jointers

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Image 26
Grizzly G9953ZXF, G4815 instruction manual Squaring Stock, Minimum dimensions For edge jointing